add newline to end of file

--HG--
extra : rebase_source : 9abacd128c50fa7824493e774df8ba3120588b57

test/unit/head.js

@@ -9,4 +9,4 @@ function deleteDatabase() {
   let databaseFile = SnowlDatastore.dbConnection.databaseFile;
   SnowlDatastore.dbConnection.close();
   databaseFile.remove(false);
-}
+}